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1.所有保险丝都需要标识分断特性
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$ @3 m/ F2 m& r' V C% ]7 x. @F, denoting quick acting;
# r! K. ~ M; ~9 _, KT, denoting time lag;) w: x; g5 s. o+ H
) |# [; w+ ^0 `6 ?$ {
分断特性来源于VDE证书和规格书
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2.针对于不同尺寸的保险丝标识：
* f' y: _7 E- v; c% J& |/ }8 B9 g8 z小型保险丝：（5x20mm和6.3x32mm）需要标识分断能力
2 d5 z4 u% o( \7 @ 4 N. \+ d; z) C1 N' o! S6 G/ ^
T3.15AL250V3 X) J' \% q/ F4 h
T3.15AH250V
6 L0 h7 x2 ]4 z, n7 k) zF3.15AH 250V
`# T% a& @/ c/ v2 FF3.15AL250V
% ~9 A/ n. j3 q. N/ L " u. f' M2 X+ H
超小型保险丝：不需要标识分断能力 6 j5 H S8 D, ]$ }0 x
T3.15A 250V0 @8 f: y- I$ A) r: r& b, W
F3.15A 250V3 u7 M P5 u1 E& M4 M0 g/ i
6 w/ X) d" o$ L* ~! `/ z8 F不建议两种规格的保险丝一起使用：& o3 C4 v2 Z9 l/ V$ R2 V
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针对以上的标识不会存在机构之间的相互不接受！2 ~( x. E: T c- i* `( x
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现在很迷茫3C要求必须要标示分断能力，而CB要求不要！6 ?4 c1 W( H! Y+ g
14.5.2.2 For fuse-links according to IEC 60127, the following marking shall be located on
7 ]6 B+ _1 ?/ d, |$ {9 P% f4 K- ceach fuse-holder or close to the fuse-link, in the given order:
' _( f4 W2 e; U+ ]# ~. c: m0 m7 x H– a symbol denoting the relative prearcing time/current characteristic;
! \* Z/ T) c7 y7 l$ C& Kexamples are:
\' r- p4 L! _F, denoting quick acting;7 s7 P/ h. S) p% r$ V
T, denoting time lag;1 a0 V, T6 }, R1 M
– the rated current in milliamperes for rated currents below 1 A, and in amperes for rated
& J6 e5 z( E; P7 [" scurrents of 1 A or more;" _# |# C- l+ e$ q! g4 V6 j
– a symbol denoting the breaking capacity of the assigned fuse-link;' l: ]2 u+ Q. g! h
examples are:
P5 z2 j# C9 wL, denoting low breaking capacity;: k" l$ g' i! h+ f2 [5 C
E, denoting enhanced breaking capacity;) C0 g8 [, M, }; J, o; B; N0 l
H, denoting high breaking capacity.( J8 N1 x( r$ v& o4 _# _
Examples of marking: T 315 L or T 315 mA L
, [% G# C w |F 1,25 H or F 1,25 A H( R0 i, e) j1 @5 \
– the voltage rating of the fuse, where a fuse with a lower rated voltage could be fitted in error. |
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发表于 2011-5-20 15:09
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